Re: [DML] Modified Trailing Arms For 1/2" Bolts

["K.L. (KAYO) Ong" <klo@xxxxxxxxx>]

What's your point???

My DeLorean is maintained by Rob at P.J. Grady since 1996 when I had  
purchased!!!

Kayo Ong
#5508
Lic.  9D NY



On Feb 7, 2012, at 7:02 PM, Jon Lockwood wrote:

> If you own a DeLorean. You should have some technical or mechanical
> expertise if not send it to DeLorean In Huston! Great people!
>
> My brother in-law couldn't screw a screw in if I was holding the screw
> driver!
>
> Unless your wealthy, and got the bucks, go for it! I'm Selling mine..
> Don't want to, The love of my life died "my wife" and I am an 20 year
> veteran. Hate to sell it "O" well. Life changes. We had fun.!! Time to
> Go!
>
> Jon Manss Lockwood
> 2173
>
> ----- Original Message -----
> From: "K.L. (KAYO) Ong" <klo@xxxxxxxxx>
> To: <dmcnews@xxxxxxxxxxxxxxx>
> Sent: Tuesday, February 07, 2012 3:15 PM
> Subject: Re: [DML] Modified Trailing Arms For 1/2" Bolts
>
> > Too much hardness (brittle) is just as bad as too soft (ductile)...
> > As for Toby's bolts.... So far, Toby's bolt has been serving my car
> > very well on the roads and streets of NYC. since his introduction
> > many years ago. Before Toby's bolts, I had replace the trailing
> > arms bolt twice! First time, they were both bolts were bent upon
> > inspection. The right side bolt was more bent to the point a shim or
> > two fell out. The second time the right side bolt had actually
> > snapped (sheared) off on a right turn!!! I was luck to be one block
> > from home... Anyway, my DeLorean was then towed to Rob to have the
> > replacement to have Toby's bolt installed...
> >
> > For what it is worth about softness and hardness about metals from
> > the aviation industry....
> >
> > Some years ago a helicopter had crashed. Upon inspection, the
> > primary rotor blade's pivot securing bolt was at fault. This bolt
> > was made in mainland China, where quality control was not a critical
> > issue. To the manufacture, steel is steel... The problem was the
> > bolt produced was way too soft and did not meet the required  
> Rockwell
> > hardness test as prescribed.... The bolt cost was $5.00 US.... It
> > was five dollars versus the $20.00 US approved bolt by the
> > F.A.A.!!! From that failure there were major lawsuits and I
> > believe the Chinese manufacture got away with it, for one, it was
> > overseas and government affiliated and two, the company just closed
> > shop and change it's name... So, that is about soft metal.
> >
> > In the USA aviation industry/manufacturing, the rivets that are used
> > are sent frozen from the manufactures until they are ready for usage
> > upon assembly. If the rivets are removed from the freezer and they
> > are not used and or they have been sitting around beyond a  
> designated
> > time, they are automatically scrapped. The reason is because the
> > room temperature with bring up the molecules movements which raise
> > their brittleness (work harden by temperature)... And also, the
> > assembler who is pneumatically hammering the rivets must know that
> > there are a prescribed amount of "hits" allow to the rivets. This is
> > to not to over "work harden" the rivets upon compression which may
> > create a condition for premature failure!!! Just several years ago,
> > we have seen planes in the news with the fuselage parts ripped  
> off or
> > fallen off... Rivet, rivet... That is hardness in metals....
> >
> > Kayo Ong
> > #5508
> > Lic 9D NY
> >
> >
> >
> > On Feb 7, 2012, at 1:53 PM, Matthew wrote:
> >
> >> http://www.industrialchassisinc.com/Web-blog/?p=622
> >>
> >> --- In dmcnews@xxxxxxxxxxxxxxx, "Martin Gutkowski" <martin@...>  
> wrote:
> >> >
> >> > Tensile strength is only part of the story, you have to be
> >> careful with ductility, aka "brittleness" and in general with steel
> >> the higher the tensile strength, the more brittle it becomes. A
> >> suspension component should have a degree of ductility, but not to
> >> the point of fatigue or elastic limit. The torque spec for the TABs
> >> is far lower than would normally be applied to such a bolt.
> >> >
> >> > Martin
> >> >
> >> >
> >>
> >>
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
> > ------------------------------------
> >
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> >
> >
> >
>
> 



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